TD_DURBIN_WATSON Function Examples | Teradata Vantage - TD_DURBIN_WATSON Examples - Teradata VantageCloud Lake

Lake - Analyze Your Data with ClearScape Analytics™

Deployment
VantageCloud
Edition
Lake
Product
Teradata VantageCloud Lake
Release Number
Published
February 2025
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en-US
ft:lastEdition
2026-02-20
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pny1626732985837.ditaval
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tcl1683670667798

TD_DURBIN_WATSON Input Table LR_RESIDUALS from ARTFITRESIDUALS Layer of TD_LINEAR_REGR

Dept ROW_I X1 ACTUAL_VALUE CALC_VALUE RESIDUAL
10 0 131.5279032 20299.98 18459.4817394763 1840.4982605236
10 1 126.4420645 34932.26 18477.032352320 16455.22764768
10 2 126.4420645 15223.23 18477.032352320 3253.8023523200
10 3 203.0642742 499.95 18212.618394859 17712.668394859
... ... ... ... ... ...

Example: TD_DURBIN_WATSON Call for Statistically Testing Residuals Generated During Linear Regression

EXECUTE FUNCTION INTO VOLATILE ART(LR_DW)
TD_DURBIN_WATSON(
   ART_SPEC( TABLE_NAME(LR_RESIDUALS)),
   FUNC_PARAMS(EXPLANATORY_COUNT(1),INCLUDE_CONSTANT(1),METHOD(DW_FORMULA),
      SIGNIFICANCE_LEVEL(.05) )
);

TD_DURBIN_WATSON Output for Statistically Testing Residuals Generated During Linear Regression

SELECT * FROM LR_DW;
DEPT 10
ROW_I 0
NUM_SAMPLES 6436
EXPLANATORY_COUNT 1
CONSTANT 1
METHOD DW_FORMUL
DW_VALUE 2.029198198718
DL_VALUE 1.938088888888
DU_VALUE 1.939668333333
SIGNIFICANCE_LEVEL 0.5
NULL_HYPOTH ACCEPT

Example: TD_DURBIN_WATSON Call for Statistically Testing Residuals Generated During ARMA Estimation

EXECUTE FUNCTION INTO VOLATILE ART(SAV_AR1_DW)
TD_DURBIN_WATSON(
   SERIES_SPEC( TABLE_NAME(AR1_RESIDUALS), SERIES_ID(DatasetID),  
      ROW_AXIS(SEQUENCE(ROW_I)), PAYLOAD( FIELDS(RESIDUAL), CONTENT(REAL) )),
   FUNC_PARAMS(EXPLANATORY_COUNT(1),INCLUDE_CONSTANT(1),METHOD(DW_FORMULA),
      SIGNIFICANCE_LEVEL(.05) )
);

TD_DURBIN_WATSON Output for Statistically Testing Residuals Generated During ARMA Estimation

SELECT * FROM SAV_AR1_DW;
DataSetID 552
ROW_I 0
NUM_SAMPLES 72
EXPLANATORY_COUNT 1
CONSTANT 1
METHOD DW_FORMUL
DW_VALUE 2.27022359754319E 000
DL_VALUE 1.58900000000000E 000
DU_VALUE 1.64540000000000E 000
SIGNIFICANCE_LEVEL 5.00000000000000E-002
NULL_HYPOTH ACCEPT